hcarty / lwt-zmq Goto Github PK

zmq 4.0-1 was released, and the latest released lwt-zmq breaks when compiled against it.

Hello,
I want to work with structured messages packed to protocol buffers.
Is it right way to parametrize Router module by message type or you do not interested in such patches?

lwt-zmq is packages with opam but it is currently using the github master address. It would be much better to rely on a stable archive somewhere (which could be automatically available on github if you add a tag to your project).

After upgrading to ocaml-zmq 4.0-1 (via OPAM), and compiling the latest lwt-zmq master, I'm getting the following exception on trivial code samples:

Fatal error: exception ZMQ.ZMQ_exception(22, "Resource temporarily unavailable")

By trivial, I mean for instance the REQ/REP test shipped with the library. This is code that used to work fine with previous versions.

Is this a known problem?

The sending piece is required when sending messages from router sockets to most other socket types.

Convenience functions to send/receive lists of messages are useful in general.

With the changes to the public API in ocaml-zmq, lwt-zmq no longer compiles. Specifically, the ZMQ.error type has been changed to track changes in the 0MQ library version 4.0, as can be seen in this commit:

issuu/ocaml-zmq@0653730

so references to errors like ZMQ.EAGAIN and ZMQ.EINTR fail to compile because they are no longer constructors for ZMQ.error.